Nikon V-PA DIC High Contrast Analyze, that will fit the Nikon Eclipse  E800, E1000, I80 and I90 microscopes. This hard to find unit carries the current Nikon product number MAY10002 and old product number 93659. The current list price for this analyzer is $755.00. This unit was only removed from packaging  to photograph. All glass surfaces are pristine and new, free from fungus, dust, element separation and scratches. The approximate measurements are: 125mm X 35mm X 7mm. Thanks for looking!